LCD is one of the best approach to show some demo. Just have a quick example port on the github how to use OLED display (SSD1306) for connecting to nRF52840 DK board.
https://github.com/jimmywong2003/SSD1306-LCD-on-NRF52
It used the Nordic SDK 15.3 to connect two difference SSD1306 resolution displays through I2C interface.
- SSD1306 128×64
- SSD1306 128×32
There are two examples to run on SSD1306 (128×32 / 128×64) resolution with nRF52840 DK.
1) Port the Adafruit SSD1306 Library / GFX Library (refer to http://electronut.in/bluey/)
2) Port on the SSD1306 driver (refer to https://github.com/monpetit/nrf52-spi-i2c-master-ssd1306)
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